1683797664 has 48 divisors (see below), whose sum is σ = 4463756640. Its totient is φ = 555705600.

The previous prime is 1683797663. The next prime is 1683797669. The reversal of 1683797664 is 4667973861.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1683797663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77134 + ... + 96525.

It is an arithmetic number, because the mean of its divisors is an integer number (92994930).

Almost surely, 2^1683797664 is an apocalyptic number.

It is an amenable number.

1683797664 is an abundant number, since it is smaller than the sum of its proper divisors (2779958976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1683797664 is a wasteful number, since it uses less digits than its factorization.

1683797664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173773 (or 173765 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 57.

The square root of 1683797664 is about 41034.1036699963. The cubic root of 1683797664 is about 1189.6794711427.

The spelling of 1683797664 in words is "one billion, six hundred eighty-three million, seven hundred ninety-seven thousand, six hundred sixty-four".